Slide 25
Slide 25 text
Why Kotlin?
Data classes
Tips and tricks for adopting Kotlin
public class VideoGame {
private String name;
private String publisher;
private int reviewScore;
public VideoGame(String name, String publisher, int reviewScore) {
this.name = name;
this.publisher = publisher;
this.reviewScore = reviewScore;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPublisher() {
return publisher;
}
public void setPublisher(String publisher) {
this.publisher = publisher;
}
public int getReviewScore() {
return reviewScore;
}
public void setReviewScore(int reviewScore) {
this.reviewScore = reviewScore;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
VideoGame that = (VideoGame) o;
if (reviewScore != that.reviewScore)
return false;
if (name != null ? !name.equals(that.name) :
that.name != null) {
return false;
}
return publisher != null ?
publisher.equals(that.publisher) :
that.publisher == null;
}
@Override
public int hashCode() {
int result = name != null ? name.hashCode() : 0;
result = 31 * result + (publisher != null ?
publisher.hashCode() : 0);
result = 31 * result + reviewScore;
return result;
}
@Override
public String toString() {
return "VideoGame{" +
"name='" + name + '\'' +
", publisher='" + publisher + '\'' +
", reviewScore=" + reviewScore +
'}';
}
Java
data class VideoGame(
val name: String,
val publisher:
String,
var reviewScore: Int
)
Kotlin